package com.itheima.jobs;
/*
    ヾ(❀ﾟ▽ﾟ)ノ 
 
 Grey1996year@163.com 
 
*/

import com.itheima.constant.RedisConstant;
import com.itheima.util.QiniuUtils;
import org.springframework.beans.factory.annotation.Autowired;
import redis.clients.jedis.JedisPool;

import java.util.Set;

public class ClearImgJob {
	@Autowired
	private JedisPool jedisPool;

	/**
	 * 判断并删除垃圾图片
	 */
	public void clearImg() {
		//根据Redis中保存的两个set集合进行差值计算，获得垃圾图片名称集合
		Set<String> set = jedisPool.getResource().sdiff(RedisConstant.SETMEAL_PIC_RESOURCES,
														RedisConstant.SETMEAL_PIC_DB_RESOURCES);
		if (set != null) {
			for (String picName : set) {
				//删除七牛云服务器上的图片
				QiniuUtils.deleteFileFromQiniu(picName);
				//从Redis集合中删除图片名称
				jedisPool.getResource().srem(RedisConstant.SETMEAL_PIC_RESOURCES, picName);
				System.out.println("自定义任务执行,清理垃圾图片"+picName);
			}
		}
	}


}
